Glow filament that stays bright the longest

Yes, I know it's abrasive. Yes, I know it depends how many walls and infill percentage. Yes, I know it depends how it's charged. Yes, I know green is the best.

Now we've got that out of the way, I want to print something that's easily visible during the day, and it's still basically an indicator at night. I don't care how bright it is initially, I only care about how bright it is 4+ hours later.

Sadly, there's only ever marketing hype with 'up to' figures from manufacturers, if it even has that. I've heard claims that PETG is better than PLA, but 95% of glow filament is PLA.

I'd love to hear from you if you've used any glow filaments - if you've made it 5 walls thick with 40% infill and still had it fade within an hour, or you were surprised at how well it worked, please share what brand and your print settings. Especially if you've used multiple different filaments and can give a comparison.